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CVE-2022-20769— Cisco Wireless LAN Controller AireOS Software FIPS Mode Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco Wireless LAN Controller (WLC)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco Wireless LAN Controller（WLC）是美国思科（Cisco）公司的一款无线局域网控制器产品。该产品在无线局域网中提供安全策略、入侵检测等功能。 Cisco Wireless LAN Controller (WLC) AireOS Software存在缓冲区错误漏洞，该漏洞源于身份验证功能中存在问题，该漏洞可能允许未经身份验证的相邻攻击者在受影响的设备上造成拒绝服务(DoS)。

CVSS 7.4 · High EPSS 0.52% · P42

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2022-20769

Vulnerability Information
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Vulnerability Title
Cisco Wireless LAN Controller AireOS Software FIPS Mode Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the authentication functionality of Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient error validation. An attacker could exploit this vulnerability by sending crafted packets to an affected device. A successful exploit could allow the attacker to cause the wireless LAN controller to crash, resulting in a DoS condition. Note: This vulnerability affects only devices that have Federal Information Processing Standards (FIPS) mode enabled.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Wireless LAN Controller 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Wireless LAN Controller（WLC）是美国思科（Cisco）公司的一款无线局域网控制器产品。该产品在无线局域网中提供安全策略、入侵检测等功能。 Cisco Wireless LAN Controller (WLC) AireOS Software存在缓冲区错误漏洞，该漏洞源于身份验证功能中存在问题，该漏洞可能允许未经身份验证的相邻攻击者在受影响的设备上造成拒绝服务(DoS)。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco Wireless LAN Controller (WLC) n/a -

II. Public POCs for CVE-2022-20769

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III. Intelligence Information for CVE-2022-20769

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Vendor Advisories for CVE-2022-20769 (1)

Same Patch Batch · Cisco · 2022-09-30 · 16 CVEs total

CVE-2022-20919 8.6 HIGH Cisco IOS and IOS XE Software Common Industrial Protocol Request Denial of Service Vulnera
CVE-2022-20856 8.6 HIGH Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Mobility Den
CVE-2022-20848 8.6 HIGH Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst 9100 Series Access Poi
CVE-2022-20847 8.6 HIGH Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family DHCP Processing Den
CVE-2022-20855 7.9 HIGH Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst Access Points Privileg
CVE-2022-20818 7.8 HIGH Cisco SD-WAN Software Privilege Escalation Vulnerabilities
CVE-2022-20775 7.8 HIGH Cisco SD-WAN Software Privilege Escalation Vulnerability
CVE-2022-20945 7.4 HIGH Cisco Catalyst 9100 Series Access Points Association Request Denial of Service Vulnerabili
CVE-2022-20930 6.7 MEDIUM Cisco SD-WAN Software Arbitrary File Corruption Vulnerability
CVE-2022-20810 6.5 MEDIUM Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family SNMP Information Di
CVE-2022-20662 6.1 MEDIUM Cisco Duo for macOS Authentication Bypass Vulnerability
CVE-2022-20851 5.5 MEDIUM Cisco IOS XE Software Web UI Command Injection Vulnerability
CVE-2022-20850 5.5 MEDIUM Cisco SD-WAN Arbitrary File Deletion Vulnerability
CVE-2022-20844 5.3 MEDIUM Cisco Software-Defined Application Visibility and Control on Cisco vManage Static Username
CVE-2022-20728 4.7 MEDIUM Cisco Access Points VLAN Bypass from Native VLAN Vulnerability

IV. Related Vulnerabilities

Same product: Cisco Wireless LAN Controller (WLC)
Same vendor: Cisco
Same weakness: CWE-787

V. Comments for CVE-2022-20769

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